公开(公告)号：US06372824B1

公开(公告)日：2002-04-16

申请号：US09549729

申请日：2000-04-14

申请人： Ki-Myong Song ,  Jong-Myung Hong ,  Hoon Chung ,  Seung-Jae Back

发明人： Ki-Myong Song ,  Jong-Myung Hong ,  Hoon Chung ,  Seung-Jae Back

IPC分类号： C08K320

CPC分类号： C09D175/04 ,  C08G18/0814 ,  C08G18/6283 ,  C08G18/8064 ,  C09D5/4473 ,  C09D163/00 ,  C08L2666/04

摘要： Disclosed are a cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. The cationic electrodeposition coating composition having a resinoid dispersed into an aqueous medium comprises a cationic electrodeposition resin and an organic solvent of less than 2.0 percent by weight based on a dispersed solution of the cationic electrodeposition resin. The cationic electrodeposition resin can be manufactured by means of a mixture comprising (i) 40-60 percent by weight of a cationic electrodeposition synthetic resin which is obtained by an epoxy-amino addition reaction, (ii) 5-10 percent by weight of an acrylic cationic electrodeposition synthetic resin having an amino group, (iii) 1-3 percent by weight of a fatty acid ester resin synthesized by an ester exchange reaction of styrene-arylalcohol copolymer and fatty acid, and (iv) 30-50 percent by weight of a blocked polyisocyanate crosslinking agent. The coating layer formed by means of the electrodeposition coating has improved properties with respect to an appearance, weather resistance, yellowing resistance, and hardness.

摘要翻译： 公开了一种阳离子电沉积涂料组合物及其制备方法，其中电沉积涂料的干燥涂膜具有显示出优异性能的环氧 - 丙烯酸双层结构，并且其中有机溶剂含量可以最小化。 具有分散在水性介质中的树脂类型的阳离子电沉积涂料组合物包含阳离子电沉积树脂和基于阳离子电沉积树脂的分散溶液小于2.0重量％的有机溶剂。 阳离子电沉积树脂可以通过以下混合物制备：（i）40-60重量％的通过环氧 - 氨基加成反应获得的阳离子电沉积合成树脂，（ii）5-10重量％ 具有氨基的丙烯酸阳离子电沉积合成树脂，（iii）1-3重量％的通过苯乙烯 - 芳基醇共聚物和脂肪酸的酯交换反应合成的脂肪酸酯树脂，和（iv）30-50重量％ 的封端多异氰酸酯交联剂。 通过电沉积涂膜形成的涂层相对于外观，耐候性，耐黄变性和硬度具有改进的性能。

公开(公告)号：US6147144A

公开(公告)日：2000-11-14

申请号：US928044

申请日：1997-09-11

申请人： Ki-Myong Song ,  Jong-Myung Hong ,  Hoon Chung ,  Seung-Jae Back

发明人： Ki-Myong Song ,  Jong-Myung Hong ,  Hoon Chung ,  Seung-Jae Back

IPC分类号： C09D5/46 ,  C08G18/08 ,  C08G18/62 ,  C08G18/80 ,  C09D5/44 ,  C09D17/00 ,  C09D163/00 ,  C09D175/04 ,  C08K3/20 ,  C08L63/02

CPC分类号： C09D175/04 ,  C08G18/0814 ,  C08G18/6283 ,  C08G18/8064 ,  C09D163/00 ,  C09D5/4473

摘要： Disclosed are a cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. The cationic electrodeposition coating composition having a resinoid dispersed into an aqueous medium comprises a cationic electrodeposition resin and an organic solvent of less than 2.0 percent by weight based on a dispersed solution of the cationic electrodeposition resin. The cationic electrodeposition resin can be manufactured by means of a mixture comprising (i) 40-60 percent by weight of a cationic electrodeposition synthetic resin which is obtained by an epoxy-amino addition reaction, (ii) 5-10 percent by weight of an acrylic cationic electrodeposition synthetic resin having an amino group, (iii) 1-3 percent by weight of a fatty acid ester resin synthesized by an ester exchange reaction of styrene-arylalcohol copolymer and fatty acid, and (iv) 30-50 percent by weight of a blocked polyisocyanate crosslinking agent. The coating layer formed by means of the electrodeposition coating has improved properties with respect to an appearance, weather resistance, yellowing resistance, and hardness.

公开(公告)号：US6130274A

公开(公告)日：2000-10-10

申请号：US115849

申请日：1998-07-15

申请人： Ki-Myong Song ,  Jong-Myung Hong ,  Hoon Chung ,  Seung-Jae Back

发明人： Ki-Myong Song ,  Jong-Myung Hong ,  Hoon Chung ,  Seung-Jae Back

IPC分类号： C09D5/44 ,  C09D163/00 ,  C08K3/20 ,  C08L63/02

CPC分类号： C09D5/4496 ,  C09D163/00 ,  C09D5/4473

摘要： Disclosed are an aqueous dispersion for a low-temperature curable cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized to zero. The aqueous dispersion of the cationic electrodeposition coating composition can be manufactured by using (a) a cationic electrodeposition synthetic resin which is obtained by an amino addition reaction of a polyepoxide, (b) an acrylic cationic electrodeposition resin having an amino group, (c) an ester-modified styrene-allyalcohol copolymer synthesized by an esterification reaction of styrene-allylalcohol copolymer with a fatty acid; and (d) a polyurethane-type crosslinking agent prepared by the reaction of methyethyl ketoxime-partially-blocked diisocyanate with trimethylol propane. The cationic electrodeposition coating composition by using the aqueous dispersion of the cationic electrodeposition resin composition has a superior low-temperature curability. The cured coated film has an epoxy-acrylic double-layered structure to give a high functionality, for improving properties such as weather-resistance, yellowing resistance, etc.

摘要翻译： 公开了一种用于低温可固化阳离子电沉积涂料组合物的水性分散体及其制备方法，其中电沉积涂料的干燥涂膜具有显示出优异性能的环氧 - 丙烯酸双层结构，其中 有机溶剂含量可以最小化为零。 阳离子电沉积涂料组合物的水性分散体可以通过使用（a）通过聚环氧化物的氨基加成反应得到的阳离子电沉积合成树脂，（b）具有氨基的丙烯酸阳离子电沉积树脂，（c） 通过苯乙烯 - 烯丙醇共聚物与脂肪酸的酯化反应合成的酯改性苯乙烯 - 烯丙醇共聚物; 和（d）通过甲基酮肟部分封端的二异氰酸酯与三羟甲基丙烷的反应制备的聚氨酯型交联剂。 通过使用阳离子电沉积树脂组合物的水性分散体的阳离子电沉积涂料组合物具有优异的低温固化性。 固化的涂膜具有环氧 - 丙烯酸双层结构，以提供高功能性，用于改善耐候性，耐黄变性等性能。